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Method for using modified soy protein tackiness agent to prepare shaving board

A soy protein and adhesive technology, which is used in flat products, manufacturing tools, pretreatment of molding materials, etc., can solve the problems of environmental pollution, non-biodegradability, limit the improvement of particleboard quality, blank particleboard production process, etc., so as to improve the quality Grade, easy processing, low cost effect

Inactive Publication Date: 2008-05-28
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a prominent problem in the production of particleboard at present: the amount of formaldehyde released exceeds the standard, which limits the improvement of the quality of domestic particleboard
However, due to the non-renewable and limited reserves of petroleum resources, and petroleum-based adhesives have huge side effects of environmental pollution and non-biodegradable, since the 1990s, the research and development of soybean protein adhesives abroad has heated up again.
At present, there are a few scientific research institutes in China to carry out research on soybean protein adhesives, mainly studying modified soybean protein adhesives for wood chip gluing, but there is almost no research on the production process of particleboard using modified soybean protein adhesives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1, a kind of particle board preparation method of modified soybean protein adhesive, carries out following steps successively:

[0030] 1), glue adjustment:

[0031] First, add 0.2 g of sodium hydroxide in every 99.8 g of water to prepare a 0.2% sodium hydroxide solution. Then add 10kg of soybean protein isolate to 87.7kg of the above-mentioned sodium hydroxide solution while stirring at a speed of 15-20kg / h, and then stir with an electric mixer at room temperature for 2 hours, so that all soybean protein isolates are evenly dispersed in hydrogen In the sodium oxide solution; then add 1kg of sodium sulfite as a preservative and 1.3kg of paraffin emulsion as a waterproofing agent, and stir to obtain 100kg of modified soybean protein adhesive.

[0032] 2), making wood shavings:

[0033] Naturally air-dried forestry processing waste (with a moisture content of 10.5%) was selected and sorted after being pulverized by a hammer mill to remove impurities and dust,...

Embodiment 2

[0038] Embodiment 2, a kind of particle board preparation method of modified soybean protein adhesive, carry out following steps successively:

[0039] 1), glue adjustment:

[0040] First add 0.2g of sodium hydroxide to every 99.8g of water to prepare a 0.2% sodium hydroxide solution; then gradually add 10kg of soybean protein isolate to 87.7kg of the above sodium hydroxide solution, and then Stir with an electric mixer for 2.5 hours, so that all soybean protein isolates are evenly dispersed in the sodium hydroxide solution; then add 1kg of sodium sulfite as a preservative and 1.3kg of paraffin emulsion as a waterproofing agent, and stir well to obtain 100kg of modified soybean protein adhesive .

[0041] 2), making wood shavings:

[0042] Naturally air-dried forestry processing waste (with a moisture content of 10.5%) was selected and sorted after being pulverized by a hammer mill to remove impurities and dust, and the particle size of the obtained wood shavings was control...

Embodiment 3

[0047] Embodiment 3, a kind of particle board preparation method of modified soybean protein adhesive, carry out following steps successively:

[0048] 1), glue adjustment:

[0049] Firstly, according to the ratio of adding 1 g sodium lauryl sulfate in every 99 g of water, it is prepared into a 1% sodium lauryl sulfate solution. Then gradually add 10kg of soybean protein isolate to 87.7kg of the above-mentioned sodium lauryl sulfate solution, stir with an electric mixer for 3 hours at room temperature, so that all soybean protein isolates are evenly dispersed in the sodium lauryl sulfate solution; then add The sodium sulfite of 1kg is used as preservative and the paraffin emulsion of 1.3kg is used as waterproofing agent, promptly gets 100kg modified soybean protein adhesive after stirring evenly.

[0050] 2), making wood shavings:

[0051] Naturally air-dried forestry processing waste (with a moisture content of 10.5%) was selected and sorted after being pulverized by a hamm...

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Abstract

The invention discloses a flakeboard manufacturing method adopting a modified soy protein bond. The method includes the following steps: 1) glue mixing: 10 parts of soy separated protein are gradually added into 87.7 parts of modified reagent solution, then the solution is stirred for 2 to 3 hours; 1 part of sodium sulfite and 1.3 parts of paraffin emulsion are added, then an even stirring is carried out; 2) wood wool production: natural air-dried castoffs of woods processing are crushed by a hammer grinder and selected so as to get the wood wool after impurities and dusts are removed; 3) gluing: the wood wool and the modified soy protein bond are evenly mixed; 4) hot-pressing: a ventilation process is carried out for drying and the water-content of the acquisition of the step 3) is regulated to 17 to 22 percent to get a plate blank; then the plate blank is hot-pressed for shaping so as to get the flakeboard. The flakeboard produced by the method of the invention has no poison and smell and no formaldehyde releasing.

Description

technical field [0001] The invention relates to a particleboard preparation method of a modified soybean protein adhesive, which belongs to the field of artificial board manufacture. Background technique [0002] In recent years, particleboard has developed rapidly due to its characteristics of low production energy consumption, good dimensional stability and easy nailing, and is widely used in furniture, decoration, building materials and kitchen industries. However, there is a prominent problem in the production of particleboard at present: the amount of formaldehyde released exceeds the standard, which limits the improvement of the quality of domestic particleboard. This is mainly due to the fact that most of the auxiliary materials used in the production of particleboard currently use trialdehyde glue, which continuously releases formaldehyde during use, which not only pollutes the environment, but also endangers people's health. It is recognized as a "health killer" for...

Claims

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Application Information

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IPC IPC(8): B27N3/04B27N1/00B27N1/02B27N3/08
Inventor 钱湘群盛奎川席雷蓝天
Owner ZHEJIANG UNIV
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